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Living things do life processes are made up of cells (Parts of the cells…

- - - - The cell the basic unit of life. The cell does the life processes.
      - Depending of number of cells:
      - Unicellular living things
        
        Multicellular living things
        
        Types of cells
        
        Plant cell
        
        Animal cell
        
        Types of cells:
        
        Animals cell
        
        Plant cell
        
        Organization of many celled organisms (multicellular)
        
        cell → tissue → organ → system → Living organism
- - - - Reproduction
        
        The living things reproduction to create new living things.
        
        The living things are born, grow and die. They grow during all their life.
        
        There are different stages of development. When they are mature they can reproduce.
        
        There are two types of reproduction:
        
        Sexual: two parents are necessary. A female and a male. The offspring are similar to the parents.
        
        Asexual: one parent is necessary. The offspring is practically identical to the parent.
      - -Nutrition
        
        Nutrition provides two things:
        
        Matter(to grow and repair the body)
        
        -Energy(to do the life processes)
        
        Types of nutrition
        
        -Heterotrophic nutrition:feeds on others living things
        
        -Autotrophic nutrition: creates its own food
        
        -Respiration
        
        We take in oxygen and take out carbon dioxide
      - All the living things do the life processes
      - Response
        
        To be able to feed (eat), survive and reproduce living organism interact with their environment.
        
        The environment is everything that surrounds us.
        
        Living organisms
        
        Detect changes in the environment
        
        Respond to the changes
        
        environment:
        
        entorn
        
        surround
- - - - In molecular biology, a centriole or centriole1 is an organelle with cylindrical structure, consisting of microtubule triplets, which is part of the cytoskeleton. A pair of centrioles positioned perpendicularly to each other and located inside a cell is called a diplosome. When the diplosome has been surrounded by pericentriolar material (a dense protein mass), it is called a centrosome or microtubule organizing center (COMT), which is characteristic of animal cells.
  - - - The nuclear envelope, nuclear membrane or karyoteque, is a porous structure (with double unit of lipid membrane) that delimits the nucleus that is characteristic of eukaryotic cells.
        The nuclear membrane consists of two lipid bilayers: the internal nuclear membrane, and the external nuclear membrane, was treated in the past as a single nuclear membrane.
      - Nuclear pore
        
        "Nuclear pores" are large complexes of proteins that cross the nuclear envelope, which is a double membrane that surrounds the cell nucleus, present in most eukaryotes. There are about 3000 to 4000 Nuclear Pore Complexes (English: NPC) in the nuclear envelope of a vertebrate cell, but their number varies depending on the number of cell transcripts. The proteins that form the nuclear pore complexes are known as nucleoporins.
        
        Rough endoplasmic reticulum
        
        Rough endoplasmic reticulum (RER), series of connected flattened sacs, part of a continuous membrane organelle within the cytoplasm of eukaryotic cells, that plays a central role in the synthesis of proteins. The rough endoplasmic reticulum (RER) is so named for the appearance of its outer surface, which is studded with protein-synthesizing particles known as ribosomes. This feature distinguishes it superficially and functionally from the other major type of endoplasmic reticulum (ER), the smooth endoplasmic reticulum (SER), which lacks ribosomes and is involved in the synthesis and storage of lipids. RER occurs in both animal and plant cells.
        
        Cytoplasm
        
        The cytoplasm is the part of the protoplasm in a eukaryotic and prokaryotic cell that lies between the cell nucleus and the plasma membrane.1 2 It consists of a very fine colloidal dispersion of granular appearance, the cytosol or hialoplasma, and in a variety of cellular organelles that perform different functions.3
        
        Its function is to house cell organelles and contribute to their movement. Cytosol is the seat of many of the metabolic processes that occur in cells.
        
        The cytoplasm is sometimes divided into a gelatinous outer region, close to the membrane, and involved in cell movement, which is called ectoplasm; and a more fluid internal part that is called endoplasma and where most of the organelles are found
      - Ribosomes
        
        Ribosomes are supramolecular complexes of ribonucleic acid (rRNA) and ribosomal proteins, constituting a molecular machine that is present in all cells (except sperm) .1 These are the cellular translation centers that make gene expression possible. That is, they are responsible for synthesizing proteins from the information contained in the DNA, which arrives transcribed to the ribosomes in the form of messenger RNA (mRNA).
    - - The cell nucleus is a membranous structure which is normally found in the center of eukaryotic cells. It contains most of the cellular genetic material, organized into several extraordinarily long and linear DNA molecules, with a wide variety of proteins, such as histones, which forms what we call chromosomes. The set of genes on these chromosomes is called the nuclear genome.
        
        Smooth endoplasmic reticulum (SER), meshwork of fine disklike tubular membrane vesicles, part of a continuous membrane organelle within the cytoplasm of eukaryotic cells, that is involved in the synthesis and storage of lipids, including cholesterol and phospholipids, which are used in the production of new cellular membrane. The smooth endoplasmic reticulum (SER) is distinguished from the rough endoplasmic reticulum (RER), the other basic type of endoplasmic reticulum, by its lack of ribosomes, which are protein-synthesizing particles that can be found attached to the outer surface of the RER to give the membrane its “rough” appearance. SER occurs both in animal and in plant cells.vc f
      - Smooth endoplasmaic reticulum
  - - - Mitochondria are cellular organelles responsible for supplying most of the energy necessary for cellular activity (cellular respiration) .1 They act as energy centers of the cell and synthesize ATP at the expense of metabolic fuels (glucose, fatty acids and amino acids). The mitochondria has an outer membrane permeable to ions, metabolites and many polypeptides.2 This is because it contains proteins that form pores called porins or VDAC (voltage-dependent anionic channel), which allows the passage of molecules up to 10 kDa of mass3 and a diameter of approximately 2 nm.
      - Chromatin
        
        Chromatin is the way in which DNA is presented in the cell nucleus. It is the base substance of eukaryotic chromosomes, which corresponds to the association of DNA, RNA and proteins found in the interphase nucleus of eukaryotic cells and that constitutes the genome of these cells. Proteins are of two types: histones and non-histonic proteins.
        The basic units of chromatin are nucleosomes. These are formed by approximately 146 base pairs in length
        
        Plasma membrane
        
        The plasma membrane, cell membrane, cytoplasmic membrane or plasmalema, is a lipid bilayer that delimits the entire cell.1 It is a structure formed by two sheets of phospholipids, glycolipids and proteins2 that surround, limit the shape and contribute to maintaining balance between the inside (intracellular medium) and the exterior (extracellular medium) of the cells. Regulates the entry and exit of many substances between the cytoplasm and the extracellular medium.3 It is similar to the membranes that delimit the organelles of eukaryotic cells.
        It is composed of two sheets that serve as a "container" for the cytosol and the different internal compartments of the cell, as well as providing mechanical protection.
        
        Secretory vesicle
        
        The release of proteins or other molecules from a secretory vesicle is most often stimulated by a nervous or hormonal signal. For example, a nerve cell impulse triggers the fusion of secretory vesicles to the membrane at the nerve terminal, where the vesicles release neurotransmitters into the synaptic cleft (the gap between nerve endings). The action is one of exocytosis: the vesicle and the cell membrane fuse, allowing the proteins and glycoproteins in the vesicle to be released to the cell exterior.
      - Microtubules
        
        The microtubules are cellular structures formed by protein polymers, 25 nm outside diameter and about 12 nm inside diameter, with lengths that vary between a few nanometers to micrometers, 1 that originate from the Microtubule Organizing Center (MTOC) ) and that extend throughout the cytoplasm. They are found with different characteristics in eukaryotic cells and in prokaryotes. They are formed by the polymerization of a dimer of two globular proteins, alpha and beta tubulin. 2
        Microtubules are involved in various cellular processes that involve secretory vesicle displacement, organelle movement, intracellular transport of substances, as well as cell division (mitosis and meiosis)
    - - In cell biology, the nucleolus or nucleolus is a region of the nucleus that is considered a supra-macromolecular structure, 1 2 that does not have a membrane that limits it. 3 The main function of the nucleolus is the transcription of ribosomal RNA by polymerase I, and the subsequent processing and assembly of the pre-components that will form the ribosomes.
        The biogenesis of the ribosome is a very dynamic nucleolar process, which involves: the synthesis and maturation of rRNA, its transient interactions with non-ribosomal proteins and RNP and also the assembly with ribosomal proteins